2. BLOOD
⢠Blood is a very important liquid.
⢠It carries oxygen and the subtances from
digestion to different parts of our body.
⢠The blood journey around our body is
called circulation.
3. ⢠The circulatory system is responsible for
blood circulation. It is made up of the heart
and the blood vessels.
4. THE HEART
⢠The heart is an organ.
⢠It pumps the blood around our body.
⢠Our heart is between the two lungs.
5. BLOOD VESSELS
⢠Blood circulates around our body inside
blood vessels.
⢠There types of blood vessels: arteries,
veins and capillaries.
6. ⢠Arteries carry blood with oxygen.
⢠Veins collect blood with carbon dioxide.
⢠Capillaries connect veins and arteries.
7. BREATHING
⢠The respiratory system is made up of the
following organs: nostrils, trachea, two
bronchial tubes and two lungs.
⢠Our ribs protect our lungs.
8. ⢠Air enters our body through the nose and
mouth.
⢠It passes through the nostrils.
⢠It goes down through the trachea, the
bronchial tubes, and into the lungs.
9. ⢠Oxygen from the air passes through the
walls of our lungs into our blood.
10. ⢠We make two movements; inhalation and
exhalation.
⢠When we inhale, our lungs fill with air.
⢠When we exhale, air leaves our lungs.